PREHEAT oven to 325 degrees F & grease your baking sheet.,MICROWAVE 2/3 cup morsels in uncovered, microwave-safe bowl on HIGH (100%) power for 10 to 15 seconds; STIR.,The morsels may retain some of their original shape; if necessary, microwave at additional 10- to 15-second intervals, stirring just until morsels are melted.,COMBINE flour, baking powder and salt in small bowl.,Beat sugar and butter in large bowl until light and fluffy; add eggs and almond extract; beat until combined.,Stir in melted chocolate; gradually stir in flour mixture then stir in slivered almonds and 1/2 cup morsels.,SHAPE dough with floured hands on prepared baking sheet into 12 x 3-inch log; round top.,BAKE for 40 minutes or until slightly firm to the touch and cracked on top; cool on baking sheet for 10 minutes.,Slide log onto cutting board and cut into 18 even slices then return to baking sheet cut side down.,Bake for additional 10 to 15 minutes or until firm.,then remove to wire rack to cool completely.,Place remaining chocolate morsels in small, heavy-duty plastic bag and microwave on HIGH (100%) power for 30 to 45 seconds; knead.,______,Let stand until drizzle is set and store in airtight container at room temperature.